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目的考察水浴加热的温度,水浴加热的时间对谷维素含量测定结果的影响。方法以正庚烷为溶剂,采用不同的水浴加热的温度,水浴加热的时间制备测定样品,照紫外-可见分光光度法[1],在315nm的波长处测定吸光度,考察水浴加热的温度,水浴加热的时间对谷维素含量测定的影响。结果水浴加热的温度对谷维素片含量的测定结果影响显著。最佳的水浴温度应为98℃～100℃。结论水浴加热的时间15min、20min、25min与30min没有显著影响,水浴加热时间15min为宜。
Objective To investigate the effect of heating temperature and water bath heating time on the determination of oryzanol content. Methods The samples were prepared by using n-heptane as solvent, heating with different water bath and heating time in water bath. The absorbance was measured at the wavelength of 315 nm according to UV-Vis spectrophotometry [1] Effect of heating time on determination of oryzanol content. Results The temperature of water bath heating had a significant effect on the determination of the content of oryzanol tablets. The best water bath temperature should be 98 ℃ ~ 100 ℃. Conclusion The heating time of water bath is 15min, 20min, 25min and 30min have no significant effect, water bath heating time of 15min is appropriate.